Fiberglass-Composite Doors .....
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are tough and maintenance-free, and are a smart choice for harsh or humid climates. They mimic the look of wood with wood-grain texturing and can be stained to match oak, cherry, walnut and a variety of other woods. Beneath their molded surface is a framework of wooden stiles and rails, including wood edges for the lockset. Voids in the framework are filled with polyurethane-foam insulation.

Fiberglass-composite doors carry long warranties. For example, Pease Industries backs its models for as long as you own the house. But because installation affects longevity, these lengthy warranties usually come only on complete entry systems that include the frame.

Affordability is another plus. Expect to pay about $200 for a 3-ft.-wide 5 6-ft., 8-in.-tall paneled door without glazing or hardware. But because accessories cost the same regardless of the material, a fully loaded fiberglass entry system can cost about $4,000.

As with steel doors, make sure that the embossed wood-grain pattern runs horizontally on the rails and vertically on the stiles, like real wood grain. And if you're installing just the door, be sure the hinges line up with the existing frame.
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